Can You Wear Contact Lenses with Allergic Chronic Conjunctivitis?
Allergic Chronic Conjunctivitis Dr. Huang: Hello! I would like to ask if I can wear contact lenses if I have allergic chronic conjunctivitis. If I can wear them, would it be better to use rigid gas permeable lenses? Additionally, could wearing them potentially worsen my conjuncti...
Dr. Huang Bozhen Reply:
It is recommended to wear rigid gas permeable contact lenses, as they should not exacerbate the condition. Additionally, if eye drops are needed, contact lenses can be reinserted 5 minutes after the drops are applied.[Read More] Can You Wear Contact Lenses with Allergic Chronic Conjunctivitis?
Understanding Myopia and Astigmatism: Do I Need Glasses at 16?
Parallax Hello, I would like to ask a question regarding my myopia. I recently had an eye examination, and it was found that my left eye has mild astigmatism (without myopia), while my right eye has 175 degrees of myopia. I am currently 16 years old. I would like to know if I nee...
Dr. Liang Ce Reply:
Hello: A difference of 175 degrees between the two eyes is generally not considered severe. You typically use your left eye for distance vision and your right eye for near vision (as the nearsighted eye is more suitable for close-up tasks). You can see clearly at both distances w...[Read More] Understanding Myopia and Astigmatism: Do I Need Glasses at 16?
Understanding Eye Blood Vessels: Causes, Treatments, and Concerns
Bloodshot eyes Hello Doctor, I started wearing rigid gas permeable contact lenses since the summer vacation, and it has been about six months. However, in December 2022, I noticed a thick red line in my right eye, extending from the inner corner to the edge of the cornea. I was ...
Dr. Hu Yusheng Reply:
Dear Miss Hsiao-Mei, The blood vessels you see from the inner corner of your right eye to the edge of the cornea are likely located beneath the conjunctiva and above the sclera. These vessels are congenital and may become more prominent due to stimulation. The causes of this sti...[Read More] Understanding Eye Blood Vessels: Causes, Treatments, and Concerns
Nighttime Orthokeratology Lenses for Myopia in Children: Benefits and Risks
Director's mailbox forwarding Are there approved overnight orthokeratology lenses (rigid gas-permeable contact lenses for myopia treatment)? What is their effectiveness in treating myopia in school-aged children? Is their use recommended? What are the side effects? What bran...
Dr. Hu Yusheng Reply:
Dear Ms. Tsai, Corneal reshaping lenses, also known as orthokeratology lenses, are a type of contact lens designed to reshape the cornea's surface. The principle behind these lenses is to redistribute the surface cells of the cornea, altering its curvature to achieve the de...[Read More] Nighttime Orthokeratology Lenses for Myopia in Children: Benefits and Risks
Understanding Risks and Success Rates of Orthokeratology for Myopia
Myopia I would like to inquire about the risks and success rates of orthokeratology. I have a prescription of -5.50 diopters with -1.25 astigmatism in my right eye and -4.50 diopters with -1.75 astigmatism in my left eye. Due to the need for prolonged reading, my myopia has been ...
Dr. Wang Zhangji Reply:
Hello! Corneal reshaping is not actually a surgery, and its complications are similar to those caused by contact lenses. Corneal reshaping needs to be maintained for a lifetime, but this can also be considered an advantage, as if you are dissatisfied one day, you can simply stop ...[Read More] Understanding Risks and Success Rates of Orthokeratology for Myopia
Managing Complex Eye Conditions: Treatment Options for Astigmatism and More
Complex eye diseases Hello. First of all, thank you for taking the time to answer my question. My brother is 32 years old and currently suffers from astigmatism, cataracts, amblyopia, strabismus, and photophobia. Recently, his eye condition has been worsening. Are there any medic...
Dr. Ke Meilan Reply:
Hello: JULIA -> Astigmatism -> Wear glasses or contact lenses. Cataract -> Surgery is determined based on the degree of vision impairment. Amblyopia -> Cannot be treated after the age of eight. Strabismus -> Surgery is possible. Photophobia -> Check for retinal ...[Read More] Managing Complex Eye Conditions: Treatment Options for Astigmatism and More
Caring for Keratoconus: Essential Tips and Surgical Insights
How to care for keratoconus? Dear Dr. Wang, I have been diagnosed with keratoconus and am currently wearing rigid gas permeable contact lenses for both eyes. However, my left cornea protrudes more than my right cornea, which often causes the lens to pop out easily, a sensation o...
Dr. Wang Yuwei Reply:
Currently, the source of corneas in Taiwan largely relies on imports, and it is recommended to use corneas from the United States for better quality assurance. In the case of keratoconus, the success rate of corneal transplantation can reach up to 80%, but there are still some ri...[Read More] Caring for Keratoconus: Essential Tips and Surgical Insights
Understanding the Differences Between Hyperopia and Presbyopia
Hyperopia and presbyopia? Hello, doctor: Could you please explain the difference between hyperopia and presbyopia? Both conditions result in clearer vision at a distance while making near vision less clear, and both are corrected with plus lenses (sph +). What distinguishes these...
Dr. Lin Zhengyi Reply:
1. Hyperopia is a congenital refractive error that can be corrected with plus lenses (sph+); presbyopia refers to the gradual loss of the lens's ability to accommodate due to aging in middle-aged and older adults, which worsens with age (simply put, it is due to elastic fati...[Read More] Understanding the Differences Between Hyperopia and Presbyopia
Understanding Corneal Neovascularization: Causes and Prevention Tips
Corneal neovascularization Hello, doctor: I would like to ask what to do if there are new blood vessels entering the cornea (as seen with a slit lamp) in the limbal area. I wear contact lenses for about 8-10 hours a day. My classmate, who has never worn contact lenses, also has c...
Dr. Wang Yuwei Reply:
1. The cornea itself lacks blood vessels, and neovascularization occurs due to corneal hypoxia, with prolonged contact lens wear being the most common cause. Your classmate's neovascularization is likely limited to the peripheral cornea; otherwise, they should see an ophthal...[Read More] Understanding Corneal Neovascularization: Causes and Prevention Tips
Understanding Follicular Conjunctivitis: Causes, Treatments, and Lens Use
Follicular conjunctivitis Hello Dr. Lin, a few months ago, I experienced a prickling and itchy sensation in my eyes (which occurs after noon). I visited a nearby ophthalmology clinic and received short-term medication treatment, but my symptoms have not improved since then. The d...
Dr. Lin Zhengyi Reply:
1. If symptoms are mild, you can switch to wearing soft contact lenses from another brand (preferably disposable contact lenses) and reduce the daily wearing time of contact lenses, or switch to rigid gas permeable lenses. If symptoms are severe, you should stop wearing them. Con...[Read More] Understanding Follicular Conjunctivitis: Causes, Treatments, and Lens Use
Understanding Corneal Reshaping: Benefits, Costs, and Duration
Corneal reshaping therapy What are the pros and cons of orthokeratology? Is it similar to using rigid gas permeable contact lenses to reshape the cornea, or is it a different method to reduce refractive error? What is the typical cost associated with this treatment? How long must...
Dr. Ke Meilan Reply:
Our hospital does not provide orthokeratology lenses, as there are currently no medical reports that can prevent the progression of myopia. The principle is to flatten the cornea temporarily to reduce myopic refractive error. Cost: unknown. Effects can typically be observed after...[Read More] Understanding Corneal Reshaping: Benefits, Costs, and Duration
Comprehensive Eye Exam: Concerns for High Myopia and Surgery Options
Eye Examination Hello, I am currently about 17.5 years old. I have been wearing soft contact lenses for nearly two and a half years, and during this time, I have not experienced any eye-related diseases. My prescription (for both eyes) is approximately -8.9 diopters (measured in ...
Dr. Huang Bozhen Reply:
Retinal detachment is most commonly seen in patients with myopia ranging from -500 to -800 diopters. You can go to any ophthalmology clinic for a dilated fundus examination. As long as your myopia has not increased for a year and you are at least 20 years old, you can undergo las...[Read More] Comprehensive Eye Exam: Concerns for High Myopia and Surgery Options
Understanding Corneal Reshaping: Benefits, Risks, and Alternatives
Corneal reshaping surgery What is corneal reshaping therapy? How effective is it for vision correction? Besides surgery, are there other methods for vision correction? What are the pros and cons of rigid gas permeable contact lenses for correction? Are there any other alternative...
Dr. Wang Zhangji Reply:
Hello! Orthokeratology is a method that uses special contact lenses to physically reduce refractive errors, and its effectiveness varies from person to person. This treatment has been practiced for some time and has many successful cases. It is a non-surgical approach to managing...[Read More] Understanding Corneal Reshaping: Benefits, Risks, and Alternatives
Understanding the Discomfort of Contact Lenses: Causes and Solutions
Contact lenses Hello, doctor: I sometimes feel a sense of separation as if my contact lenses are about to fall out shortly after putting them on. What could be the reason for this? Am I not suitable for wearing contact lenses? Thank you.
Dr. Liang Ce Reply:
Hello: If you feel like your contact lenses are about to fall out after wearing them for a while, there are two possible reasons. First, the lenses may be old and dirty, resulting in decreased water content and oxygen permeability, which can cause the lenses to dry out and become...[Read More] Understanding the Discomfort of Contact Lenses: Causes and Solutions
Understanding Your Eye Exam Results: Myopia and Astigmatism Explained
excuse me? Hello Doctor: Below are my computer vision test data. Could you please tell me how many diopters of myopia I have and address my astigmatism and other related issues? Thank you. (VD=12.00) <r> S C A-5.25 -1.00 5-4.75 -1.25 ...
Dr. Chen Xuan Reply:
(VD=12.00) → This refers to the distance between the spectacle frame and the eye; if it is contact lenses, then VD=0 (unit in mm). <R> S C A -5.25 -1.00 5 Usually, the <R> at the top indicates the right eye -4.75 -1.25 7 <L> indicates the left eye -5.00 -1.25 10...[Read More] Understanding Your Eye Exam Results: Myopia and Astigmatism Explained
Does Wearing Contact Lenses Worsen My High Myopia?
Could you please provide more context or specify your question regarding wearing contact lenses? Dear Doctor, if I am a patient with high myopia, will wearing contact lenses cause my myopia to worsen? I am used to wearing glasses, but I am considering switching to contact lenses....
Dr. Chen Anping Reply:
Hello, Wawa: Wearing contact lenses does not worsen myopia.[Read More] Does Wearing Contact Lenses Worsen My High Myopia?
Can You Rinse Rigid Contact Lenses with Tap Water?
Can rigid gas permeable contact lenses be washed with tap water? Can hard contact lenses be washed with tap water? Thank you.
Dr. Chen Xuan Reply:
Both soft and hard contact lenses should be cleaned with sterile saline solution, and not with tap water. This is because tap water can sometimes contain amoebic protozoa due to contamination from soil or feces during transportation, which can lead to corneal infections. Dr. Hsua...[Read More] Can You Rinse Rigid Contact Lenses with Tap Water?
Understanding Contact Lens Discomfort: Causes and Solutions
Contact lenses Hello Doctor: I have been using soft contact lenses for two years. Recently, over the past two to three months, I have noticed that whenever I put them on, the left lens tends to move upwards with just a blink, causing discomfort in my eye. After removing the lens,...
Dr. Wang Ziyang Reply:
Answer: Displacement of contact lenses, especially when they move towards the upper fornix of the eye, is mostly caused by the glasses being too loose. You can ask an optical shop to adjust them or consult a physician for an examination.[Read More] Understanding Contact Lens Discomfort: Causes and Solutions
Essential Care Tips for Rigid Contact Lenses to Prevent Infections
What is the care for rigid gas permeable contact lenses? Hello... I saw that due to infrequent cleaning of contact lenses, there can be an invasion by amoebas. I read in the newspaper that they can also thrive in water, so it's advised not to wash them with water. However, I...
Dr. Wang Zhangji Reply:
Hello! Amoebas can exist in tap water and even in distilled water, so it is advisable not to wear contact lenses while swimming or bathing. Best wishes for health from Dr. Wang Zhang-ji, Ophthalmologist, Taoyuan City Health Bureau.[Read More] Essential Care Tips for Rigid Contact Lenses to Prevent Infections
What Could Be Causing a Small Bump Under My Eyelid?
I'm not sure what has grown? Recently, I discovered a small, hard lump under my left upper eyelid. It feels similar to a pimple on the skin—very tiny and not noticeable unless touched. It is neither painful nor itchy. I previously had a bacterial infection, but after reducin...
Dr. Wu Shengping Reply:
Hello Ms. Chaire: Your left eye frequently experiences inflammation, which is a form of chronic inflammation. This can stimulate the sebaceous glands, leading to the formation of granulation tissue and resulting in a hard lump known as a chalazion. If it persists for a long time ...[Read More] What Could Be Causing a Small Bump Under My Eyelid?